A175257 - cp's OEIS frontend

A175257 a(n) is the smallest prime p such that 2^(p-1) == 1 (mod a(1)...a(n-1)*p).

n	a(n)
1	3
2	5
3	13
4	37
5	73
6	109
7	181
8	541
9	1621
10	4861
11	9721
12	19441
13	58321
14	87481
15	379081
16	408241
17	2041201
18	2449441
19	7348321
20	14696641
21	22044961
22	95528161
23	382112641
24	2292675841
25	8024365441
26	40121827201
27	481461926401
28	722192889601
29	2888771558401
30	7944121785601
31	55608852499201
32	111217704998401
33	889741639987201
34	1779483279974401

[3, 5, 13, 37, 73, 109, 181, 541, 1621, 4861, 9721, 19441, 58321, 87481, 379081, 408241, 2041201, 2449441, 7348321, 14696641, 22044961, 95528161, 382112641, 2292675841, 8024365441, 40121827201, 481461926401, 722192889601, 2888771558401, 7944121785601, 55608852499201, 111217704998401, 889741639987201, 1779483279974401]

cp's OEIS Frontend

A175257 a(n) is the smallest prime p such that 2^(p-1) == 1 (mod a(1)...a(n-1)*p).

Table of values

List of values

cp's OEIS Frontend

A175257 a(n) is the smallest prime p such that 2^(p-1) == 1 (mod a(1)*...*a(n-1)*p).

Table of values

List of values

A175257 a(n) is the smallest prime p such that 2^(p-1) == 1 (mod a(1)...a(n-1)*p).